Get in on the building with this adorable kids birthday cake idea for your next Lego themed party. Why should the kids have all the fun? And it’s easy, thanks to great directions from the good folks at Betty Crocker.
It’s a box cake mix with 2 containers of ready made vanilla frosting amended with the gel food coloring in red, yellow and blue to get those strong Lego-like primary colors. 1 cup of frosting for each color- mix these up while your cake bakes. Plus- large marshmallows, cut in half. You’ll use a 13×9″ rectangular pan. While the cake bakes prepare your cake surface from a large cutting board or piece of cardboard, perhaps covered in birthday wrapping paper. With or without the decorative paper, cover this surface tightly in plastic wrap, tightly taped on the reverse side for a smooth surface.
Using a large serrated knife, cut the rounded dome from the top of the baked cake, and discard (or give to the kids for a snack). Flip cake over so the cut side is down and cut it into thirds crosswise, and cut one of the thirds in half to make two squares. Move the pieces to your prepared serving surface.
Crumb coat your cake pieces– meaning cover in a THIN layer of frosting to seal in any crumbs. Make 1 square blue and one white; 1 rectangle red and the other yellow. Set the frosting in the refrigerator or freezer for 1/2 to a full hour.
Add the finish coat of frosting to each cake piece and then finish with the marshmallow halves. Frost 8 of them in red, 8 in yellow, 4 in white and 4 in blue, and place appropriately on the corresponding cake pieces. You’re Done! And your Lego party has the perfect cake that the kids will love. Fun and easy birthday cake- Thanks Betty Crocker!