Gluten-Free Key Lime Coconut Angel Food Cake

Prep: 30 min1 cake (16 slices)medium
Key Lime Coconut Angel Food Cake with Whipped Topping

A light and airy angel food cake layered with tangy key lime cream and finished with sweet coconut flakes. The bright citrus flavor balances perfectly with the tropical coconut, creating an ideal dessert for summer gatherings or special occasions. This version transforms a simple boxed cake mix into an elegant three-layer dessert that's both refreshing and impressive.

Ingredients

Yield: 1 cake (16 slices)
  • 1 box (16 oz) Betty Crocker Angel Food Cake Mix
    homemade angel food1 cakebaking

    more time but fresher taste

  • 1 ⅓ cups cold water
  • 1 can (14 oz) sweetened condensed milk
  • cup Key lime or regular lime juice
  • 1 teaspoon lime peel, grated
  • 1 container (12 oz) frozen whipped topping, thawed
    heavy cream whipped1.5 cupsdairyadds dairy

    richer flavor, more work

    Full guide →
  • 1 cup flaked coconut
  • kiwifruit, sliced(optional)
  • strawberries, sliced(optional)

Instructions

  1. 1

    Make cake mix as directed on package using cold water and cool completely

  2. 2

    Cut cake horizontally into 3 layers and place bottom layer cut side up on serving plate

  3. 3

    Beat milk, lime juice and lime peel with wire whisk until smooth and thickened

  4. 4

    Fold in whipped topping

  5. 5

    Spread 1 cup lime mixture evenly over first layer of cake

  6. 6

    Place second layer carefully on bottom layer and spread evenly with 1 cup lime mixture

  7. 7

    Top with remaining layer of cake

  8. 8

    Frost top and sides of cake with remaining lime mixture

  9. 9

    Sprinkle with coconut

  10. 10

    Garnish with kiwifruit and strawberries

Tips

Tip 1

Use a serrated knife to cut the cake layers cleanly without compressing the delicate angel food texture.

Tip 2

Chill the assembled cake for at least 2 hours before serving to help the layers set and make slicing easier.

Good to Know

Storage

refrigerate covered up to 3 days

Make Ahead

can assemble 1 day ahead, add fresh fruit just before serving

Serve With

chilled, cut with sharp knife wiped clean between slices

See pairing guide →

Common Mistakes

Watch

don't cut cake while warm to avoid crumbling

Watch

fold whipped topping gently to avoid deflating

Substitutions

Dairy-Free Swaps

Frozen whipped topping
heavy cream whipped1.5 cupsdairyadds dairy

richer flavor, more work

General Alternatives

Key lime juice
regular lime juice1:1citrus

slight flavor difference

Angel food cake mix
homemade angel food1 cakebaking

more time but fresher taste

Find more substitutions →

FAQ

Can I use fresh whipped cream instead of frozen topping?

Yes, whip 1.5 cups heavy cream with 2 tablespoons sugar until soft peaks form. The texture will be slightly different but equally delicious.

How long will this cake keep in the refrigerator?

The assembled cake will keep well covered in the refrigerator for up to 3 days, though it's best served within 2 days for optimal texture.

Can I freeze this cake?

You can freeze the unfrosted cake layers wrapped tightly for up to 3 months, but don't freeze the assembled cake as the cream filling doesn't freeze well.