Single Girls Wholesome Molten Chocolate Cake

Bahan-bahan (1 porsi)

• 1 tablespoon butter
• 1 1/2 ounces dark chocolate, chopped
• 1 egg
• 1 teaspoon vanilla extract
• 2 teaspoons coconut sugar (may use granulated sugar)
• 1 teaspoon whole wheat flour
• 1/4 teaspoon salt
• 1 square dark chocolate
• 1 teaspoon creamy nut butter (optional)