Crispy Wagyu Beef and Lime Tostadas

Ingredients

• 1 Large Sweet Onion (julienned)
• 2 OZ Butter
• 2 TSP Kosher Salt
• 3 TBSP Grapeseed Oil
• 2 LB Double 8 Cattle Company Fullblood Wagyu Bottom Round Steak
• Kosher Salt (to season)
• Freshly Ground Black Pepper (to season)
• 2 TBSP Grapeseed Oil
• 1 Large Sweet Onion (quartered)
• 4 CUP Beef Stock
• 1 TSP Kosher Salt
• 2 TSP Ground Cumin
• 5 Garlic Cloves (minced)
• 1/2 CUP Lime Juice
• 3 TBSP Fresh Oregano (chopped)
• 3 Roma Tomatoes (small diced)
• 1/2 Red Onion (minced)
• 2 Garlic Cloves (minced)
• 1 Lime (juiced)
• 1 Jalapeno (seeded and minced)
• 1/2 CUP Fresh Cilantro (minced)
• 1/2 TSP Kosher Salt
• 8 Corn Tortillas
• 3 TBSP Grapeseed Oil (plus additional as needed for frying)
• 1 Large Avocado (peeled, pitted, and sliced)
• 2 CUP Green Leaf Lettuce (shredded)
• 1/2 CUP Crema or Sour Cream
• 1 CUP Crumbled Cotija Cheese