SHREDDED BEEF TOSTADAS WITH CHILES AND LIME

Steps:

• Cook the beef:
• Fill a large pot with 12 cups water; stir in 6 Tbsp. salt. Add beef, onion, garlic, peppercorns, cumin, and cloves. Bring to a simmer and cook, partially covered, until beef shreds easily with a fork, 1 1/2-2 hours. Drain, then transfer to a large bowl and let cool. Using 2 forks or your fingers, coarsely shred beef. Season with salt.
• Finish the beef salad:
• Add onion, lime juice, pineapple juice, and oregano to beef mixture and mix well. Season with salt. Let sit at least 1 hour at room temperature or chill up to 1 day. Stir in radishes, chiles, cilantro, and chives just before using.
• Assemble the tostadas:
• If frying tortillas, fit a large skillet with candy or deep-fry thermometer; pour in oil to measure 1". Heat over medium-high until thermometer registers 375°F. Fry tortillas in batches until crispy, turning every 30 seconds, about 2 minutes total. Drain on paper towel-lined baking sheets and season with salt.
• Spread 1 Tbsp. Creamy Black Bean Spread on a tostada shell. Top with 1/4 cup beef salad, then lettuce, Quick Pickled Onions, radishes, avocado, crema, queso fresco, and salsa. Repeat with remaining tostada shells. Serve at room temperature.
• Do Ahead
• Beef salad can be chilled for up to 1 day. Bring to room temperature and stir in radishes, chiles, cilantro, and chives just before using.