Ubi Jalar Streuse

Bahan-bahan (4 porsi)

• 2 sweet Potatoes (about 3/4 lb. each) ($1.47)
• 1 Tbsp olive oil ($0.13)
• 4 tsp maple syrup ($0.39)
• 2 Tbsp all-purpose flour ($0.02)
• 2 Tbsp rolled oats ($0.02)
• 1/4 cup brown sugar ($0.16)
• 1/4 cup chopped walnuts ($0.57)
• 2 Tbsp butter ($0.18)
• 1/2 tsp cinnamon ($0.05)