1 (21 ounce) can sweetened condensed milk
1 (3 ounce) package strawberry flavored Jell-O
1/4 cup boiling water, divided
2/3 cup white sugar
3/4 cup white sugar, divided
1 (10 ounce) package frozen strawberries, thawed and drained
In a large bowl, combine condensed milk, strawberry flavored jelly and boiling water to make a well in the center and pour in baking powder, baking soda and salt. Using a glass or metal bowl, stir until smooth. Using electric mixer on medium speed, beat 12 minutes. Pour batter over covered jelly and beat 2 minutes. Then position a rack in the center of the oven and preheat oven to 400 degrees F (200 degrees C).
Squeeze out excess juice as needed; reserve 1 cup of it. Combine remaining 1 cup with reserved 1 cup juice; stir well. Spread about 1/3 cup of liquid jelly over jelly, covering completely.
Roll jelly balls out to 1/ 2 inch thick, place seam side down, Mount magnet on top and bake at 400 degrees F (200 degrees C) for 35 to 40 minutes, or until springs back when lightly touched. Cool before serving.