-
1
Heat oven to 350F.
-
2
Line 13x9-inch baking pan with aluminum foil; grease and flour pan.
-
3
Set aside.
-
4
Combine all cake ingredients in bowl; beat at medium speed until well mixed.
-
5
Spread batter into prepared pan.
-
6
Bake 28-30 minutes or until toothpick inserted in center comes out clean.
-
7
Cool completely.
-
8
Cover with aluminum foil; freeze 1 hour.
-
9
Place half & half and flour in 1-quart saucepan.
-
10
Cook over medium heat, stirring constantly, 4-6 minutes or until mixture is very thick.
-
11
Remove from heat; cool completely.
-
12
Combine 1 cup butter, sugar and vanilla in bowl.
-
13
Beat at high speed 5-7 minutes or until very smooth and sugar is dissolved.
-
14
Add cooled flour mixture, 2 tablespoons at a time, beating well after each addition, until smooth and creamy.
-
15
Remove cake from freezer; invert onto 5x10-inch platter.
-
16
Peel foil off cake.
-
17
Frost top and sides of cake.
-
18
For each fireworks burst, pipe dot of blue or red gel onto cake.
-
19
Pipe 4 concentric circles (about 1/2 inch apart) of red and blue around dot.
-
20
Starting at center, pull toothpick through all gel circles past outer circle to create firework design.
-
21
Wipe excess gel and frosting from toothpick as needed.
-
22
*Substitute Devils food cake mix and 1 (1-ounce) bottle red food color.
-
23
**Substitute 4 teaspoons vinegar or lemon juice and enough milk to equal 1 1/4 cups; let stand 5 minutes.
