Line a baking sheet with parchment paper and line up the saltine crackers in rows.
Melt the butter and brown sugar in a sauce pan over medium low heat and slowly bring the mixture to a boil. Be careful not to heat your toffee too rapidly as it can cause the ingredients to separate.
Boil the toffee mixture for 2–3 minutes, stirring constantly, until thick.
Pour the thickened toffee over the saltines and spread it out evenly using a rubber spatula.
Bake the toffee covered saltine crackers at 350 degrees for 4–5 minutes, until browned and bubbly on top.
Remove the pan from the oven and sprinkle the white chocolate chips over the top.
After the chocolate sits for 5 minutes and is mostly melted, use the back of a spoon to spread it evenly across the crackers.
Top your Easter crack with Cadbury mini eggs and pastel colored sprinkles.
Freeze the toffee until the set, then break it into pieces using your hands.
Store leftover Easter crack in an airtight container in the refrigerator or freezer.