In a large pot, empty all six cans of peaches.
Mix in 1 cup of sugar, ensuring it’s well combined.
Stir in the vanilla extract.
Incorporate the butter and remaining sugar into the pot and let it melt and combine with the peaches.
Corn Starch Slurry: Create a thickening agent for your peach mixture by combining 3 Tbsp of water with the corn starch. Stir this slurry into the peach mixture and let it simmer for another 10 minutes.