Slice it into 1/2" strips. Grab some flour, and put in some seasoned salt and pepper. Get a bowl with beer together, and dip heart into beer, flour, beer, then flour.
We pressure cook ours ( 3 to date this month ) 30 to 40 minutes max , depending on size. She adds onion, pickling spices & vinegar. Incredibly tender and flavorful.
I mostly just slice heart into about 1/2" slices and fry it slowly in butter. Tastes good, tastes better fried in a cast iron skillet. Tastes even better fried in a cast iron skillet that's on a wood burning cookstove.
Cut deer heart into little small pieces.
Boil for 30 minutes.
Be sure to allow to cool before putting into the dog food bowl, you don't want to burn Fido's lips!
You may want to add 1/2 pound deer liver to the mix, remember, dogs love deer liver!
Saute', sliced, with olive oil along with onions and mushrooms and serve along side of some eggs fryed to your choosing and BAM... yer tongue will knock you out as well as clear the slick stuff from behind yer ears
Brent