In a large bowl, combine the ingredients for the cheese filling and mix until smooth. 

Place cheese filling in freezer to chill.

In a blender, mix together milk, flour, eggs, butter, vanilla, and salt. Blend until smooth.

Heat a skillet over medium heat. Pour 1/4 c. of batter into the pan and swirl in a circular motion until the batter is a thin circle. Cook until lightly golden on the bottom, flip and cook on the other side until lightly golden. 

Remove and place on a plate. Keep warm. Continue until all blintzes are completed.

Once the blintzes are cooked, place a large spoonful of the cheese filling about 1" from the bottom. Roll up like a burrito. Fill all blintzes. 

Melt 2 tbsp. of butter and 1 tbsp. oil in a pan over medium heat. Place blintzes in the oil seam down. Cook for 1-2 minutes on each side until golden brown. 

Serve with desired toppings.