To make your own baharat spice blend, mix one teaspoon each of ground coriander and cumin with half a teaspoon each of cinnamon and paprika.
Recipe information
Yield
Makes 4 servings
Ingredients
Date Ketchup:
Sliders and Assembly:
Ingredient info:
Preparation
Date Ketchup:
Step 1
Heat oil in a small saucepan over medium heat. Cook onion, stirring occasionally, until beginning to brown, 5–8 minutes. Add ketchup, dates, and beer; bring to a boil, reduce heat, and simmer, stirring occasionally and adding water as needed to prevent burning, until thick and slightly darkened, 20–25 minutes.
Step 2
Remove pan from heat and stir in vinegar. Let mixture cool slightly. Purée in a blender, thinning with water if needed, until smooth; season with salt and pepper. Let cool.
Step 3
DO AHEAD: Date ketchup can be made 5 days ahead. Cover and chill.
Sliders and assembly:
Step 4
Using your hands, gently mix onion, garlic, lamb, beef, parsley, and baharat in a large bowl; season with salt and pepper. Form scant 1/4-cupfuls of lamb mixture into twelve 2"-diameter patties.
Step 5
Heat oil in a large skillet over mediumhigh heat. Place patties in skillet and immediately reduce heat to medium. Cook about 3 minutes per side for medium-rare. Serve patties on buns with date ketchup, lettuce, caramelized onions, and feta.