Patties
2 tablespoons butter
8 ounces crimini mushrooms, finely chopped
2 cloves garlic, minced
10 ounces lean (80/20) ground beef, chilled
10 ounces ground pork, chilled
1/4 cup fresh flat-leaf parsley, minced
2 teaspoons smoked sweet paprika
1 teaspoon salt
1/2 teaspoon ground pepper
2/3 cup raw hazelnuts, finely chopped
1/4 cup avocado oil for frying
Spanish Aioli
2/3 cup mayonnaise
2 cloves garlic, minced
2 teaspoons fresh lemon juice
2 teaspoons grated lemon zest
2 teaspoons fresh orange juice
2 teaspoons grated orange zest
1/4 cup jarred roasted red peppers, drained
Sautéed mushrooms
3 tablespoons butter
8 ounces crimini mushrooms, thinly sliced
1 tablespoon sherry vinegar
1/4 teaspoon salt
1/4 teaspoon ground pepper
Burgers
4 ounces Manchego cheese, thinly sliced
1/2 cup whole sweet piquante (or cherry) peppers, sliced
8 butter lettuce leaves
4 brioche buns, split and lightly toasted