Cinnamon Nut Swirl Mug Cake

Bahan-bahan (1 porsi)

• 1/4 cup all-purpose flour ($0.03)
• 1 Tbsp brown sugar ($0.04)
• 1/4 tsp baking powder ($0.01)
• 1/8 tsp salt ($0.01)
• 1/8 tsp cinnamon ($0.02)
• 1 Tbsp chopped pecans or walnuts (optional) ($0.16)
• 1/2 Tbsp butter, melted ($0.03)
• 2 Tbps milk ($0.04)
• 1/2 Tbsp butter, melted ($0.03)
• 1 tsp brown sugar (0.02)
• 1/2 tsp cinnamon ($0.05)
• 1 Tbsp powdered sugar ($0.01)
• 1/2 tsp milk ($0.01)