Cut orange slice candies into eights; pour boiling water over candy slices and let stand 2 hours or overnight.
Using a mixer, cream butter and sugar until it seems fluffy. Add eggs and mix on low until blended.
Sift dry ingredients together; add to creamed mixture. Add orange slices and pecans and gently mix until well blended. Batter will be thick.
Using a spatula, put into greased and floured 15 ½ x 10 ½ inch jelly roll pan.
Bake for 35-40 minutes at 325 degrees or until done. Sprinkle with powdered sugar while warm. Let the bars completely cook before cutting into squares.
Notes
The hardest thing about this recipe is chopping up those packaged orange slice candies. Even the sharpest of knives doesn't work well against that thick gooey sugary candy.I find that if you place the candy in the freezer for about 20-30 minutes. They're easier to chop. Use a knife or a good pair of kitchen shears to cut the candy into eight pieces.