Poor Man'S Shrimp Cocktail

• 1 cup dry crab boil seasoning (such as Zatarain's or Old Bay)
• 1/4 cup kosher salt
• 2 yellow onions, quartered
• 6 garlic cloves
• 3 lemons, halved crosswise
• cauliflower, cored, trimmed into 2-inch florets
• seafood cocktail sauce

1. Combine crab boil, salt, onions, garlic, and 6 quarts water in a large pot. Squeeze juice from lemons into pot and add lemon halves. Set pot over high heat and bring liquid to a boil. Cook for 10 minutes to let flavors meld. Using a slotted spoon, remove onions, garlic, and lemons from broth; discard. Return liquid to a rolling boil.
2. Add cauliflower; turn off heat, cover pot tightly, and let stand until cauliflower is crisp-tender, 5-10 minutes. Drain; spread out cauliflower on a rimmed baking sheet and let cool completely. DO AHEAD: Cauliflower can be made 1 day ahead. Cover and refrigerate.
3. Arrange room-temperature or chilled cauliflower on a platter with cocktail sauce for dipping.

crab boil, kosher salt, yellow onions, garlic, lemons, cauliflower, cocktail sauce

Taken from www.food.com/recipe/poor-mans-shrimp-cocktail-474026 (may not work)