Cut the bread into 1-2" cubes and add to the slow cooker.
2 Loaves French Bread
Sprnkle the raisins on top and throughout, evenly.
¾ Cup Raisins
In a large mixing bowl add the milk, cream, eggs, sugar, brown sguar, Salt, vanilla and melted butter and mix well with a whisk.
1 Cup Milk, 2 Cups Heavy Whipping Cream, 4 Each Large Eggs, 1 Cup Granulated Sugar, ½ Cup Light Brown Sugar, 1 teaspoon Salt, 2 teaspoons Vanilla Extract, 4 Tablespoons Unsalted Butter
Pour over the top of the bread and raisins, evenly.
Cover with lid from the slow cooker and cook on low heat for 4 hours.
Half way through cooking time, use a cloth under the lid between the crock pot and the lid, to help brown/crisp the top a little.