Preparation

• Lay the palm coins in a single layer in a non-reactive dish. Drizzle with 2 Tbs. of the lime juice, 3 Tbs. water, and the olive oil. Sprinkle evenly with sugar and a generous pinch of salt. Shake the dish to coat the palm coins and let sit while preparing the remaining ingredients.
• In a medium bowl, mix the remaining 1/4 tsp. lime juice with the mayonnaise, coriander seeds, lime zest, cayenne, a generous pinch of salt, and a pinch of pepper. Toss the shrimp with the mayonnaise and season to taste with salt and pepper.
• Carefully drain the hearts of palm and pat dry with paper towels. Top each radish coin with a palm coin of similar size, two shrimp, and a cilantro leaf.