French Yogurt Cake

Preheat oven to 350°F. Coat a standard (8 1/2x4 1/4") loaf pan with nonstick vegetable oil spray. Dust with flour; tap out excess. Whisk 1 1/2 cups all-purpose flour, 2 teaspoons baking powder, and 3/4 teaspoon kosher salt in a medium bowl. Using your fingers, rub 1 cup sugar with 1 tablespoon finely grated lemon zest in a large bowl until sugar is moist. Add 3/4 cup whole-milk Greek yogurt, 1/2 cup vegetable oil, 2 large eggs, and 1/2 teaspoon vanilla extract; whisk to blend. Fold in dry ingredients just to blend. Pour batter into prepared pan; smooth top. Bake until top of cake is golden brown and a tester inserted into center comes out clean, 50-55 minutes. Let cake cool in pan on a wire rack for 15 minutes. Invert onto rack; let cool completely. DO AHEAD: Can be made 3 days ahead. Store airtight at room temperature.