This baked Seafood Dip is the kind of crowd-pleaser you bring when you want something comforting, impressive, and unfussy. It melts together cream cheese and cheddar with mayo and Old Bay for a rich base, then the crab meat adds that sweet, delicate seafood flavor. It bakes until bubbly and golden at the edges, and five minutes after it comes out of the oven you’ll be scooping into a steaming, irresistible dip.
I test recipes as if I’m feeding friends on a weeknight and hosting a weekend crowd — practical decisions guide everything here. The ingredient list is short and purposeful. The directions are straightforward. No complicated steps, just small touches: lemon zest for brightness, hot sauce for lift, a pinch of cayenne if you want heat, and a sprinkle of green onions for freshness right before serving.
Below you’ll find the ingredient breakdown, step-by-step instructions, swaps, common pitfalls, and storage notes so you can make this Seafood Dip reliably every time. If you’re prepping for a party, this is the dip that disappears first. If you’re staying in, it’s a perfect appetizer that feels like a treat with minimal effort.
Ingredient Rundown

Ingredients
- ½ Cup diced cherry tomatoes — adds bright acidity and a fresh pop; dice small so they fold in without releasing too much liquid.
- 8 oz cream cheese (softened to room temperature) — the creamy backbone of the dip; bring it to room temp so it blends smooth and without lumps.
- 1 teaspoon lemon zest — lifts the whole dish with citrusy brightness; zest before cutting the lemon so it’s easy to measure.
- 2 cloves garlic minced (or two teaspoon minced garlic in oil) — garlic gives depth; use fresh minced for sharper flavor or the garlic-in-oil shortcut for convenience.
- 1 Cup mayo — adds silkiness and tang; use a good-quality mayo for clean flavor.
- 1 teaspoon Hot Sauce — brings a subtle kick and balances richness; adjust to taste.
- 1 pinch salt and pepper (to taste) — essential seasoning; taste before baking and adjust as needed.
- ¼ teaspoon cayenne (optional) — optional heat; use if you want a warmer finish.
- 1 Cup cheddar cheese shredded — sharp, melty cheese for body and flavor; shred it fresh for best melting.
- 1 Tbs Old Bay Seasoning — classic seafood seasoning; it adds savory, herbaceous notes that define the dip.
- 16 oz Crab Meat — the star ingredient; fold in gently so you keep nice chunks rather than tearing it into shreds.
- 3 green onions chopped — garnish for color and a mild onion bite; sprinkle on right after baking.
Step-by-Step: Seafood Dip
- Preheat the oven to 325°F (163°C) and have a 2‑quart baking dish ready.
- In a large bowl, combine ½ Cup diced cherry tomatoes, 8 oz cream cheese (softened to room temperature), 1 teaspoon lemon zest, 2 cloves garlic (minced) or 2 teaspoons minced garlic in oil, 1 Cup mayo, 1 teaspoon hot sauce, 1 pinch salt and pepper, ¼ teaspoon cayenne (optional), 1 Cup shredded cheddar cheese, and 1 Tbs Old Bay Seasoning.
- Stir the mixture with a spatula or spoon until the ingredients are evenly blended and smooth.
- Gently fold in 16 oz crab meat with a rubber spatula, taking care not to break up the crab pieces.
- Transfer the mixture into the 2‑quart baking dish and spread it into an even layer.
- Bake on the center oven rack for 20–30 minutes, until the dip is bubbly throughout.
- Remove from the oven and let cool 2–3 minutes. Sprinkle with 3 chopped green onions and serve hot.
Top Reasons to Make Seafood Dip

It’s fast. From countertop to oven-ready takes about ten minutes of active work — most of that is stirring. If you emerge from the kitchen with something that looks indulgent and tastes indulgent too, you’ve already won.
It’s approachable. The ingredients are pantry- and fridge-friendly. You don’t need exotic items or expensive technique. If you can spread soft cream cheese and fold in crab, you can make this.
It scales. Need a larger batch for a party? Multiply the recipe and use a larger baking dish. Cooking time may change slightly, but the method stays the same: mix, fold, bake, and serve.
Flavor-Forward Alternatives

- Smokier twist: Stir in a teaspoon of smoked paprika (if you have it) to the mix before baking for a smoky backdrop.
- Cheese swap: Replace up to half the cheddar with Monterey Jack for a creamier, milder melt.
- Spice it up: Add more cayenne or a dash of your favorite hot sauce to bring forward heat.
- Herb lift: Fold in a tablespoon of chopped fresh parsley if you want a green herbal note in the finished dip.
Appliances & Accessories
Oven: You’ll bake at 325°F (163°C) on the center rack so the dip cooks evenly and melts through without burning the edges too quickly.
Mixing bowl and spatula: Use a large bowl for easy mixing and a rubber spatula to fold in the crab gently. The spatula preserves lump integrity while combining ingredients.
2‑quart baking dish: The recipe specifies a 2‑quart dish. It gives a good depth for even baking — too deep and you’ll underbake the center; too shallow and it could overbrown.
Cheese grater: Freshly shredded cheddar melts more smoothly than pre-shredded varieties, which often contain anti-caking agents that can affect texture.
Easy-to-Miss Gotchas
Don’t skip softening the cream cheese. If it’s cold, you’ll get lumps and uneven texture. Leave it on the counter long enough to reach room temperature or microwave in short 5–8 second bursts if you’re in a rush.
Watch the crab. Overworking the crab meat when folding will shred the lumps that make the dip feel special. Use gentle strokes with a spatula and fold until incorporated, not until broken down.
Check the bake time. Ovens vary. Start checking at 20 minutes and look for bubbling throughout. If the center isn’t bubbling, give it a few more minutes; if the top is browning quickly, tent lightly with foil.
Mind the tomatoes. Diced cherry tomatoes add freshness, but if they’re large or watery they can make the dip looser. Dice small and drain any excess juice if your tomatoes are very ripe.
Dietary Swaps & Alternatives
Lower-fat option: Use light mayo and a reduced-fat cream cheese to reduce richness. The texture will be a bit lighter but still satisfying.
Non-dairy swap: For a dairy-free version, look for plant-based cream cheese and shredded dairy-free cheddar alternatives. Note: melting and flavor will differ, and Old Bay is still a great fit if it’s vegan-safe.
Protein swap: If crab is not available or you prefer another seafood, cooked, flaked white fish or chopped shrimp can work. Keep in mind crab has a delicate sweetness that other proteins won’t perfectly replicate.
Gluten-free: The recipe itself is gluten-free, but check any dippables (crackers, chips, bread) for gluten if serving guests with restrictions.
Chef’s Notes
On texture
Balance is everything. You want a creamy base and intact crab pieces. Avoid overmixing once the crab goes in. If the mix seems tight before baking, don’t panic — the mayo and cream cheese create a smooth melt as it heats.
On seasoning
Taste before baking. The hot sauce, Old Bay, and lemon zest all influence the final flavor. Adjust salt and pepper at the mixing stage so the dip comes out balanced, since baking will concentrate flavors slightly.
On presentation
Serve it in the same baking dish for a rustic look, or transfer to a warm serving bowl. Scatter the chopped green onions right after it comes out so they retain color and crunch. A squeeze of fresh lemon on top just before serving brightens every bite.
Storage & Reheat Guide
Cool the dip to room temperature for no more than two hours, then cover and refrigerate. It will keep for 2–3 days in a sealed container. The texture tightens when chilled; that’s normal.
To reheat, preheat the oven to 325°F (163°C). Place the dip (covered with foil to prevent excessive browning) on a baking sheet and heat for 10–15 minutes or until warmed through and bubbling. You can also reheat single servings in the microwave in 30-second bursts, stirring between bursts, until hot.
Freezing is not recommended for best texture, as the dairy components can separate and become grainy once thawed.
Reader Q&A
Q: Can I make this ahead for a party?
A: Yes. Assemble the dip, cover tightly, and refrigerate up to 24 hours before baking. Bring to room temperature for 20–30 minutes before placing in the oven; you may need a few extra minutes of bake time if the dish is cool going in.
Q: My dip was watery after baking. What happened?
A: Likely too much tomato juice or the crab was very wet. Make sure tomatoes are diced small and drained if necessary. Pat crab meat dry if it was packed in liquid. Also avoid overbaking; long bakes can release moisture.
Q: Can I substitute imitation crab (surimi)?
A: You can, but the texture and flavor will be different. Imitation crab tends to be firmer and less sweet than real crab meat. Fold it in gently and adjust seasoning as needed.
Q: How spicy is this dip?
A: The base recipe is mildly spiced with a teaspoon of hot sauce and optional ¼ teaspoon cayenne. Increase hot sauce or cayenne to taste if you prefer more heat.
Hungry for More?
If you loved this Seafood Dip and want more simple, shareable appetizers, try a warm spinach-and-artichoke dip next time or a layered seven-layer dip for variety. Both follow the same principle: build a flavorful base, add texture, and finish with a bright garnish.
Save this recipe for gatherings or a cozy night in. It’s straightforward to scale, easy to tweak, and always a crowd favorite. If you try it, tell me how you served it and what tweaks you made — I love practical tips from the kitchen. Happy dipping!

Seafood Dip
Equipment
- 2-quart baking dish
- Mixing Bowl
- Spatula
- Oven
- Rubber spatula
Ingredients
Ingredients
- 1/2 CupCherry TomatoesDiced
- 8 ozCream CheeseSoftened to room temperature
- 1 teaspoonlemon zest
- 2 clovesgarlicminced or two teaspoon minced garlic in oil
- 1 CupMayo
- 1 teaspoonHot Sauce
- 1 pinchsalt and pepper to taste
- 1/4 teaspooncayenneoptional
- 1 Cupcheddar cheeseshredded
- 1 TbsOld Bay Seasoning
- 16 ozCrab Meat
- 3 green onionschopped
Instructions
Instructions
- Preheat the oven to 325°F (163°C) and have a 2‑quart baking dish ready.
- In a large bowl, combine ½ Cup diced cherry tomatoes, 8 oz cream cheese (softened to room temperature), 1 teaspoon lemon zest, 2 cloves garlic (minced) or 2 teaspoons minced garlic in oil, 1 Cup mayo, 1 teaspoon hot sauce, 1 pinch salt and pepper, ¼ teaspoon cayenne (optional), 1 Cup shredded cheddar cheese, and 1 Tbs Old Bay Seasoning.
- Stir the mixture with a spatula or spoon until the ingredients are evenly blended and smooth.
- Gently fold in 16 oz crab meat with a rubber spatula, taking care not to break up the crab pieces.
- Transfer the mixture into the 2‑quart baking dish and spread it into an even layer.
- Bake on the center oven rack for 20–30 minutes, until the dip is bubbly throughout.
- Remove from the oven and let cool 2–3 minutes. Sprinkle with 3 chopped green onions and serve hot.
Notes
The amount of tomatoes is optional, they add a lot of color to the dish and so you might want to use more but if tomatoes isn't your thing, then you might want to use less.
If using a tomato other than cherry tomatoes, scoop the seeds and gelled part of the tomato out so that your dip doesn't become soupy.
If using a tomato other than cherry tomatoes, scoop the seeds and gelled part of the tomato out so that your dip doesn't become soupy.
It is a lot easier to mix this if you use room temp cream cheese.
It is a lot easier to mix this if you use room temp cream cheese.
The lemon zest is optional and you can also add the juice of the lemon, it all depends on how much you enjoy lemon flavors with your seafood dip.
The lemon zest is optional and you can also add the juice of the lemon, it all depends on how much you enjoy lemon flavors with your seafood dip.
Let's don't get into the mayo argument, but we find that Dukes Mayo works best for recipes (we like Hellmans for sandwiches).
Let's don't get into the mayo argument, but we find that Dukes Mayo works best for recipes (we like Hellmans for sandwiches).
Cayenne is optional, it adds some heat.
Cayenne is optional, it adds some heat.
You'll get the best results if you shred the cheddar cheese yourself and use the best quality of cheese you can find, however, if you need to use pre shredded cheese, that will work.
You'll get the best results if you shred the cheddar cheese yourself and use the best quality of cheese you can find, however, if you need to use pre shredded cheese, that will work.
Use lump crab meat or claw meat in large chunks, drain any liquid off of the can before using.
Use lump crab meat or claw meat in large chunks, drain any liquid off of the can before using.
We like to use the crab meat that you find in the meat case in a yogurt size container.
We like to use the crab meat that you find in the meat case in a yogurt size container.
The green onion is a garnish but it does add a nice fresh flavor to the final dish.
The green onion is a garnish but it does add a nice fresh flavor to the final dish.
