Pumpkin Butterscotch Molten Lava Cakes

Bahan-bahan (4 porsi)

• 1 cup butterscotch chips
• 11 tablespoons butter
• 3 egg yolks
• 3/4 cup pumpkin (NOT pumpkin pie filling)
• 3/4 cup brown sugar
• 1/2 cup flour (spooned and leveled)
• 4 teaspoons graham cracker crumbs (mounded teaspoons)
• butterscotch chips (extra to garnish)
• vanilla ice cream