Award-Winning Zucchini Bread with Brown Sugar Streusel

Bahan-bahan (1 porsi)

• 2/3 cup (57g) old-fashioned whole rolled oats or quick oats
• 1/2 cup (100g) packed light or dark brown sugar
• 2 Tablespoons (15g) all-purpose flour
• 1/2 teaspoon ground cinnamon
• 1/4 cup (4 Tbsp; 56g) unsalted butter, cold
• optional: 1 Tablespoon (10g) semi-sweet chocolate chips
• 1 and 1/2 cups (188g) all-purpose flour (spooned & leveled)
• 1/2 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 2 teaspoons ground cinnamon
• 1/4 teaspoon ground nutmeg
• optional: 1 cup (180g) semi-sweet chocolate chips (or chopped nuts, raisins, etc)
• 1/2 cup (120ml) vegetable oil (or melted coconut oil)
• 1/2 cup (100g) packed light or dark brown sugar
• 1/2 cup (100g) granulated sugar
• 1 large egg, at room temperature
• 2 teaspoons pure vanilla extract
• 1 cup (130g) shredded zucchini (lightly blotted)*