Using a 2-in/5-cm cutter, cut 10 rounds from the devil’s food cake.
Using a pastry bag fitted with a #6 plain tip, pipe 1 oz/30 g of peanut butter onto each round of cake.
Using a #5 plain tip, pipe 4 oz/110 g of the Bavarian cream into each of ten 3-in/8-cm hemispherical flexible silicone molds, filling them to within ½ in/1 cm of the top. Flip a cak