Peanut Butter Lava Cake Recipe. Place the butter in the mug and microwave to melt. Top each cake with a scoop of vanilla ice cream if desired and using a spoon drizzle with peanut butter sauce and chocolate sauce.
Add an additional 1 ½ teaspoons water to form a drizzly consistency. Mix the peanut butter filling with powdered sugar and melted butter. Heat for 45 seconds.
Once melted remove bowl from heat.
Place mugs back in the microwave and cook for an additional 30 to 60 seconds. Add an additional 1 ½ teaspoons water to form a drizzly consistency. Mix 2 cups confectioners sugar cream cheese and peanut butter in another large bowl with an electric mixer until smooth. Melt chocolate and butter together either in the microwave in 20- to 30-second intervals or in a heatproof bowl set over a pan of gently simmering water.