Ginger-Cardamom Zucchini Bread

Ingredients

• STREUSEL
• cup (42 g) all-purposeflour
• Tbsp. plus 1½ tsp. (30 g) dark brown sugar
• cup (24 g) old-fashioned oats
• tsp. ground cardamom
• tsp. ground ginger
• tsp. ground turmeric
• tsp. baking powder
• Pinch of kosher salt
• Tbsp. unsalted butter, melted, cooled slightly
• BREAD
• Nonstick vegetable oil spray
• medium zucchini (about 1 lb.), trimmed
• tsp. vanilla extract
• cups (300 g) granulated sugar
• Zest of 1 lemon
• large eggs
• cup grapeseed oil
• cups (219 g) all-purpose flour
• tsp. Diamond Crystal or ¾ tsp. Morton kosher salt
• Blueberry jam and/or crème fraîche (for serving; optional)