Pumpkin Cheesecake Truffles

Bahan-bahan (20 porsi)

• 1 tablespoon butter
• 4 ounces cream cheese, softened at room temperature
• 1/2 cup canned pumpkin puree
• 1 (14-ounce) can sweetened condensed milk
• 1 1/2 teaspoons pumpkin pie spice
• 1/2 cup graham cracker crumbs
• 1/3 cup white chocolate chips
• Orange food coloring (or red and yellow food colorings), as needed, optional
• Granulated sugar, as needed, for rolling
• Chocolate chips, for topping