Preheat oven to 375 degrees.
Put 8 eggs in bowl and with a wisk, mix well.
Add both cans of evaporated milk and mix.
Add couple drops of vanilla and mix.
Add condensed milk and mix.
Put brown sugar and butter in a bunt pan. Put on stove on high until melted.
Once melted, take off stove.
Pour milk mixture into bunt pan.
Fill a casserole dish with an inch of cold water in the bottom. Put bunt pan in dish.
Put in oven for an hr and 1/2.
When finished, it should look like this. Chill in fridge.
Take out and enjoy!