Chocolate chip mug cookie - Trois fois par jour

Ingredients

• 1 tablespoon butter
• Pinch of salt
• 1 tablespoon sugar
• 1 tablespoon brown sugar
• 1 tablespoon milk (I use almond milk)
• 1/3 teaspoon vanilla extract
• 1/3 teaspoon baking powder
• 3 tablespoons all-purpose flour
• 2 tablespoons chocolate chips
• 1 scoop vanilla ice cream, for serving (optional)