In a large, microwave safe bowl, melt butter.

Add brown sugar, corn syrup, and condensed milk. Microwave for 4 minutes.

Remove from microwave and stir. Microwave for 4 minutes.

Remove from microwave and stir. Microwave for 4 minutes.

Test caramel by dropping into a cup of water. If caramel is too soft, microwave for another minutes and repeat the test until desired consistency is reached.

Add vanilla and stir.

Pour into greased 9x9 and refrigerate until completely set up (1-2 hours)

Melt chocolate and shortening in the microwave by microwaving for 30 seconds and stirring. Repeat until chocolate is melted.

Pour over set-up caramel and smooth out.

Top with crushed almonds.

Return to refrigerator for topping to set up (30 minutes-1 hour).

Remove and cut into bite-sized pieces. Store in an air-tight container.