Ingredients

2 tablespoons extra-virgin olive oil, plus more for pan 

2 cups whole-wheat pastry flour 

2 cups spelt flour 

1/2 cup plus 2 teaspoons sunflower seeds, toasted 

1/2 cup plus 1 teaspoon black sesame seeds 

2 tablespoons plus 1 teaspoon caraway seeds 

2 tablespoons plus 1 teaspoon flaxseeds 

2 teaspoons baking powder 

1 teaspoon baking soda 

2 teaspoons coarse salt 

1 1/2 cups whole milk, room temperature 

3/4 cup buttermilk, room temperature 

2 tablespoons honey 

2 tablespoons extra-virgin olive oil 

Preparation

Preheat oven to 350 degrees. Lightly coat a 9-by-5-inch loaf pan with oil. Line with parchment, leaving a 1-inch overhang on long sides. Oil parchment.

In a large bowl, whisk together flours, 1/2 cup each sunflower and black sesame seeds, 2 tablespoons each caraway and flax seeds, baking powder, baking soda, and salt.

In another large bowl, stir together milk, buttermilk, honey, and oil until honey is dissolved. Add flour mixture; beat until combined, about 1 minute. Transfer to prepared pan; sprinkle with remaining seeds, pressing gently to adhere.

Bake, rotating pan halfway though, until a tester inserted in center of the loaf comes out clean, about 1 hour, 5 minutes. Let cool in pan on a wire rack 20 minutes, then turn out bread and let cool completely. (Bread can be tightly wrapped and stored at room temperature up to 3 days or frozen up to 1 month.)