Peanut Butter Cookie Dough Layered Chocolate Cake

INGREDIENTS

• 1 cup milk chocolate chips
• 1/2 cup milk
• 2 cups all-purpose flour
• 2/3 cup cocoa powder
• 2 cups granulated sugar
• 1 teaspoon kosher salt
• 1 teaspoon baking soda
• 4 large eggs
• 1 cup sour cream
• 1 cup canola oil
• 4 tablespoons unsalted butter
• 1/2 cup creamy peanut butter
• 1/2 cup granulated sugar
• 1/4 cup light brown sugar, packed
• 1 teaspoon pure vanilla extract
• 1/4 cup milk
• 2 sticks unsalted butter, softened
• 2 cups powdered sugar
• 1/2 cup cocoa powder
• 1 cup chocolate chips, melted
• 20 mini Reeses Peanut Butter Cups