Mahjouba Algerian Crêpes

Name: Mahjouba (Algerian Crêpes)
Ingredients: 6 small yellow onions, roughly chopped; 3 red Holland chiles, stemmed and seeded; 2 medium carrots, roughly chopped; 1⁄4 cup olive oil, plus more for greasing; 3 tbsp. tomato paste; 1 (15-oz.) can whole peeled tomatoes in juice, drained, crushed by hand; 2 tbsp. kosher salt, plus more to taste; Freshly ground black pepper, to taste; 1 cup packed cilantro leaves, finely chopped; 4 1⁄4 cups fine semolina