Char the jalapeños over an open flame or under the broiler until the skins are blackened. Peel, deseed, and chop.
Make the green ajika: In a blender, combine the charred jalapeños, garlic, cilantro, mint, parsley, dill, celery leaves, fenugreek, lemon juice, water, olive oil, salt, and pepper. Blend into a paste.
Grill the potatoes: Toss halved potatoes with olive oil, salt, and pepper. Grill or roast the potatoes for 10-12 minutes until golden and crispy.
Toss the grilled potatoes with the green ajika paste in a large bowl.
Make the red pepper spread: In a blender, combine chickpeas, sun-dried tomatoes, tahini, garlic, lemon juice, olive oil, smoked paprika, turmeric, cayenne, and chickpea liquid. Blend until smooth and creamy. Adjust seasoning with salt.
Spread the red pepper spread onto a serving platter, then top with the ajika-coated potatoes. Garnish with optional herbs, chili flakes, and fresh jalapeño slices.