Emmanuel Duverneau

1: In a small bowl combine warm water, milk, yeast, and sugar. Set aside and wait 10 minutes until the mixture is foamy.

2: In a separate small bowl, beat 1 egg and set aside.

3: In a large bowl, whisk flours with salt.

4: Add dry ingredients to a stand mixer and add butter, mix until it makes crumbs.

5: Add the yeast mixture and beaten egg, mix until dough forms.

6: Place dough onto a clean surface and knead until smooth and elastic, about 8 to 10 minutes.

7: Shape dough into a ball and place it back into the bowl. Cover with plastic wrap and let rise until doubled in size (about 1 hour).

8: Separate dough into 8 equal parts and roll each into a ball, placing them on a baking sheet lined with parchment paper.

9: Cover loosely with a clean kitchen towel and let rise for 1 hour.

10: Preheat the oven to 410° with a baking pan of water on the floor.

11: Beat the remaining egg with 1 tablespoon water and brush on top of buns.

12: Bake buns on the center rack for 15 minutes until golden brown, turning halfway.

13: Caramelize onions and slice the tomato.

14: Season the ground beef with salt and pepper, smash and cook until crispy.

15: Add cheese and let melt before removing from the pan.

16: Toast the inside of the buns.

17: Assemble the burger with sauce, lettuce, tomato, beef patty, onions, pickles, and avocado. Serve.