I decided to go with a recipe from King Arthur Flour Company because, simply put, I trust them. I assume there are oodles of hot water pastry recipes out on the inter-webs but once I saw the King Arthur version, I decided to commit because, as you'll see when you visit the recipe link, there are minimal ingredients and steps in the recipe. That's a win! The filling of our pie was made ahead of time and I promise you that I did nothing out of the ordinary. I chopped the vegetables I had on hand the same size. I tossed them with salt, pepper, and olive oil and then roasted them at 375 degrees until tender. I pureed about 1/3 of the roasted vegetables, combined them in a bowl, and tossed it in the fridge for later use.
When we were ready to make our pies during Book & Bake, I simply boiled the water and fat, added it to the flour and salt, and stirred to make a shaggy dough that I could then dump onto the counter to knead into a warm, comforting mass. I was sure to heed the advice I'd read about using the dough while warm since once it cools it could be a bit more challenging to manipulate. Most of us had a lovely time creating the little pies; but, you do not have to make mini pies! You can make it into one large pie/loaf, too. Scroll to see my attempt at the step by step (more or less) process.