In a large bowl, whisk together both flours and salt. Add the melted butter and mix with a fork. Add the yogurt and mix again. Add the water, 1 tablespoon at a time and using your hands, incorporate the water until a smooth ball forms. Kneed the dough making sure all ingredients are mixed well, but don't over knead.
Grab a golf ball sized piece of the dough, and using a rolling pin, roll to about 1/4 inch thickness. You can use a circular pastry cutter, or even a flipped over mug, about 3 inches wide, to cut circles out of the dough.
You can add the dough scraps back to the larger ball and continue to roll out discs, which will yield you about 20-25 empanada circles. As you make the circles, place them on a well floured baking pan or onto a silicon mat and cover with a damp town until all discs are rolled out.
Once all discs have been rolled out, pick up a disc in one hand and place about 1 tbsp of pureed tzimmes in the middle. Fold the disc so that you form a half circle with the pureed tzimmes enclosed. Go ahead and pinch the ends shut, and using a fork on a flat surface, press the ends the entire way around to make a solid seal.
Repeat with the remaining discs, and once finished, cover the tray with plastic wrap and place into your freezer. They will hold frozen here for a couple of months, however if you plan to wait to make them longer than a few days, place them into a ziploc freezer bag for long-term storage.
Once ready to make, you have 2 options. You can bake these in an oven at 375 degrees (from frozen) for about 35 minutes. If you want to fry these, heat oil in a large heavy-bottomed pot until the oil reaches 350 degrees, and slowly add the empanadas to the pot. Do not overcrowd the pot. Keep an eye on these and remove once done to your liking.
There is no wrong way to eat these, however I prefer these baked and the tzimmes puree is less likely to leak out and splatter as it would in the oil.
Serve with yogurt, labneh, honey, molasses, etc. In the picture above I made pomegranate labneh by simply mixing pomegranate molasses into some labneh until getting the flavor I desired.