Activate Yeast: In a bowl, combine warm water, yeast, and honey. Let sit for 5-10 minutes until foamy.
- Mix Dry Ingredients: In another bowl, whisk together whole wheat flour, bread flour, oats, sunflower seeds, flaxseeds, cinnamon, and salt.
- Combine Wet Ingredients: Add olive oil and chopped apples to the yeast mixture.
- Mix and Knead: Add dry ingredients to wet ingredients and stir to combine. Knead on a floured surface for 8-10 minutes until smooth and elastic.
- First Rise: Place dough in a greased bowl, cover, and let rise in a warm place until doubled, about 1 to 1.5 hours.
- Shape and Second Rise: Punch down dough, shape into a loaf, and place in a greased loaf pan. Cover and let rise for 30-45 minutes.
- Bake: Preheat oven to 375°F (190°C). Bake for 35-40 minutes until golden brown and hollow sounding when tapped.
- Cool and Serve: Remove from pan and cool on a wire rack before slicing.