Ricotta Cassata Cake

Ingredients

• 1-1/2 c half-and-half, divided
• 1-1/2 c ricotta cheese, divided
• 2/3 c granulated sugar, divided
• 6 egg yolks
• 3/4 t cornstarch
• 1 T cold unsalted butter
• 1 T vanilla extract
• 1 t kosher salt
• 1/2 c half and half