“It’s pretty simple to make. The crust is just the right toughness, and the bread tastes delicious! I definitely want to make this bread again!” —Aidan, recipe tester, age 9
Spray inside bottom and sides of 8½-by-4½-inch metal loaf pan with vegetable oil spray.
In bowl of stand mixer, whisk together whole-wheat flour, bread flour, yeast, and salt. Lock bowl in place and attach paddle to stand mixer. In 4-cup liquid measuring cup, whisk warm water, melted butter, and honey until honey has dissolved.
Start mixer on low speed. Slowly pour water mixture into flour mixture and mix until batter comes together, about 1 minute. Increase speed to medium and knead dough for 5 minutes. (Dough will look smooth and wet, almost like cake batter.) Stop mixer.
Spray rubber spatula with vegetable oil spray. Use greased spatula to transfer batter to greased loaf pan. Use spatula to push dough into corners of loaf pan and spread into even layer. Spray top of dough lightly with vegetable oil spray. Let dough rise, uncovered, until dough is about ½ inch above top edge of loaf pan, 30 minutes to 1 hour.
While dough rises, adjust oven rack to middle position and heat oven to 375 degrees. Just before baking, use pastry brush to gently paint top of dough with beaten egg.
Use oven mitts to remove loaf pan from oven (ask an adult for help). Place loaf pan on cooling rack and let bread cool in pan for 15 minutes.
Carefully run butter knife around edges of bread to loosen from loaf pan (ask an adult for help—pan will be hot). Use oven mitts to carefully turn loaf pan on its side and remove bread from pan. Let bread cool completely on cooling rack, about 3 hours. Transfer bread to cutting board, slice (ask an adult for help), and serve.
Most sandwich breads take a whole day to make! But this recipe comes together so fast for a few reasons: We use high-protein bread flour to give the loaf good structure. We add a lot of water so the dough can be poured into the pan (no kneading). And, we use a lot of yeast to help the dough rise fast as lightning!