Slow cooked deer hearts stuffed with a rich red wine, onion, and mushroom bread filling, wrapped in bacon, and braised until fork-tender. This old-school deer heart recipe turns a lean venison heart into a comforting, saucy main dish that works in the oven or slow cooker.
In a large skillet, melt the butter over medium-low heat. Add the onions and mushrooms and cook until soft. Add the garlic and cook for 1 minute. Add the thyme and red wine, then reduce the liquid by half. Add the cubed bread and stir until combined.
Season to taste with salt and pepper. Cook the mixture, stirring gently and often, for about 8 minutes. The mixture should be moist but not soggy. If it looks a little too dry, add a little more wine to moisten. Let the stuffing cool to the touch.
Stuff and Wrap the Hearts
Pre-heat your oven to 350 degree F. Stuff each heart tightly with the stuffing. Lay 3 strips of bacon across the top of the heart openings in a crisscross pattern, enclosing the stuffing inside. Tie some butchers twine around the bacon, securing them to the hearts.
Braise the Hearts
Place the hearts in a baking vessel so that they are packed tightly enough to stand upright. Pour the stock around the hearts until they are 3/4 covered.
Cover the baking vessel with aluminum foil and cook for 2 1/2 hours. Poke with a fork to check tenderness. If tough, cover and cook for another 30 minutes and check for tenderness again.
NOTES
Don't have enough hearts? This recipe can be cut in half to prepare 2 hearts if needed.
Slow cooker option. After stuffing, wrapping, and tying the hearts, place them in the slow cooker with enough stock to come about three-quarters of the way up the sides, then cook on high for 6 to 8 hours, or until fork-tender.
Cool the stuffing first. The bread mixture should be moist but not soggy before it goes into the hearts. If it looks dry, add a splash of red wine or stock. If it looks too wet, add a little more bread.
Pack the hearts tightly. Open the chambers enough to fill them well, then stuff each heart firmly so the filling stays in place during the braise.
Wrap and tie securely. Use the bacon and butcher’s twine to close the top and hold the stuffing inside while the hearts cook.
Cover only partway. Pour in enough stock to come about three-quarters of the way up the hearts. This keeps them braised and moist without boiling them.
Cook until fork-tender. In the oven, start checking after 2 1/2 hours, and continue in 30-minute increments if needed. In the slow cooker, cook on high for 6 to 8 hours. They are ready when a fork slides in easily and the hearts slice without resistance.
Reduce the braising liquid. Strain it, skim the fat, and simmer it down if you want a stronger sauce for serving.
Store only briefly. This can be made 1 day ahead, and leftovers keep in the refrigerator for up to 3 days. Freezing is not recommended.