Keto is super sustainable but it gets really expensive really fast if you spend money on premade products. One of the most expensive items out there is pasta sauce! You would be amazed at how much pasta sauce without sugar and fillers costs. This recipe only uses a few simple and cheap ingredients to create an extremely flavorful marinara.
Heat oven to 350 degrees F. Pour your peeled tomatoes into an oven-safe sauce pot (I prefer enameled cast iron).
Chop 1/2 onion into chunks (we're going to blend it later, so no need for finesse here) and garlic into slices. Place on top of tomatoes in pot. Top with sprigs of rosemary, if available. Bake these ingredients for 45 mins.
About 10 mins before the pot is done in the oven, heat up a large skillet on the stove at med-high heat. Add butter to the pan and stir every minute or so until brown (about 5 mins) but not burnt. Once brown, add can of tomato paste to pan and cook down 3-5 mins.
Remove pot from the oven. Brush rosemary leaves into the pot, discard the stems, and blend. I like to use an immersion blender so I can leave some chunks of tomato in the sauce (for a more rustic feel) but you can just use a regular blender if you don't have one of those. Set aside.
Add 1/2 cup white wine to garlic/tomato paste on the stovetop. You'll want to immediately cover it with a lid, since it'll probably start to pop. Reduce the heat after about a minute and uncover. Season with salt, pepper, and any other favorites. I like moringa and oregano. Simmer 5 mins.
Carefully add in your baked tomato mixture to the saucepan on the stove. Mix well and continue to salt/pepper to taste. Optional: Cover with a lid and simmer an additional 20 mins.
When ready to serve, stir in olive oil and top with more freshly cracked black pepper. Enjoy!
Serving Size 1/12 recipe
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.