While some may cringe at the thought of eating brains, sweetbreads, also known as offal, are celebrated in many cuisines around the world. On today's Please Explain food writer Robert Sietsema and butcher Brent Young of The Meat Hook, tell you all you'll ever need to know about buying, preparing and eating offal. They'll also share the best local restaurants offering exciting offal options.

Do you have questions about offal? Send us your questions in a comment below, or let us know on Twitter or Facebook!

Check out recipes from Chef Chris Consentino of Offal Good!

Marinated Tripe, New Potatoes & ParsleyExtracted from Beginnings: My Way To Start a Meal by Chris Cosentino

-1 1/3 cups each coarsely chopped carrot, celery, and onion-2 heads garlic, split, plus 5 cloves, minced-1 bunch fresh thyme-2 bay leaves-1 tbsp fennel seeds-Kosher salt-2 vanilla beans, split lengthwise-1/2 cup dry white wine-Juice of 1 lemon-4 tbsp Champagne vinegar-2 lb honeycomb beef tripe, preferably organic and unbleached-10 fingerling potatoes-1 tbsp red pepper flakes-Finely grated zest and juice of 3 Bearss limes or Eureka lemons-1/2 cup extra-virgin olive oil, plus more for drizzling-3 tbsp coarsely chopped fresh flat-leaf parsley

In a large stockpot, combine 8 cups water, the carrot, celery, onion, split garlic heads, thyme, bay, fennel seeds, 1 tablespoon salt, the vanilla, wine, lemon juice, and 1 tablespoon of the vinegar. Rinse the tripe well under cold running water until the water runs clear and the tripe is free of grit. Add the tripe to the pot, place over medium-high heat, and bring to a boil. Reduce the heat so that the liquid just simmers and cook uncovered, skimming any scum that rises to the surface, until the tripe is very tender, about 3 hours. Remove from the heat, let the tripe cool completely in the cooking liquid, and refrigerate the tripe in the liquid overnight.

Place the potatoes in a large saucepan with salted water to cover, bring to a simmer, and cook until just tender when pierced with a knife, 10-15 minutes. Drain, rinse under cold running water to cool completely, and then cut crosswise into slices 1/4 inch thick. Place in a bowl. Remove the tripe from the cooking liquid and discard the liquid. Using a very sharp knife, shave the tripe into thin, ribbonlike strips. Transfer to a bowl. In a small bowl, combine the minced garlic, pepper flakes, lime zest and juice, and remaining 3 tablespoons vinegar and let stand for 5 minutes. Slowly whisk in the olive oil and season with salt. Add just enough of the vinaigrette to the tripe to coat lightly and then toss to mix. Taste and add more vinaigrette to your liking. Add the remaining vinaigrette to the potatoes and toss gently to coat evenly. Add the potatoes to the tripe and toss together.

Transfer the tripe and potatoes to a platter and garnish with parsley and a drizzle of olive oil. Serve right away.

Serves 6

Tuscan-Style Chicken Livers

Extracted from Beginnings: My Way To Start a Meal by Chris Cosentino

-1 1/2 lb chicken livers, trimmed of any sinew or green or brown patches-3 shallots, sliced-1/4 cup vin santo-2 tsp fresh thyme leaves-1 fresh bay leaf-Finely grated zest of 1 orange-Kosher salt and freshly ground black pepper-Small pinch of licorice powder-4 tbsp rendered duck fat, plus more melted duck fat for sealing-3 1/2 tbsp unsalted butter-24 baguette slices

In a shallow bowl, combine the chicken livers, shallots, vin santo, thyme, bay, orange zest, 2 teaspoons salt, 1/2 teaspoon pepper, and the licorice powder and mix well. Cover and refrigerate for 3 hours.

Remove and discard the bay leaf from the chicken livers. In a large sauté pan over high heat, warm the duck fat. When it is hot, working in batches so as not to crowd the pan, use a slotted spoon to transfer the chicken livers and shallots to the pan. Cook, turning as needed, until the livers are well colored on the outside and pink at the center, about 4 minutes. As each batch is ready, transfer it to a food processor. Pour the remaining marinade into the pan, stir up the browned bits, and add the contents of the pan to the food processor.

Process the liver mixture until smooth. With the motor running, slowly add the butter until the mixture is emulsified. Pass the mixture through a tamis (drum sieve) into a bowl. Pack the mixture into one or more ramekins and top with a thing layer of duck fat to seal. Cover and refrigerate for at least 6 hours or up to 4 days.

Just before serving, preheat a stove-top grill pan over medium-high heat. Place the baguette slices on the grill rack and grill, turning once, until etched with grill marks and crisp on both sides, about 2 minutes on each side.

To serve, set out the ramekin, the baguette slices, and a spoon.

Serves 6