Melt chocolate and butter in microwave for approximately 2 minutes. Cool slightly. Beat in sugar, eggs and vanilla. Mix well. Stir in flour, baking powder and salt. Do not overmix. Fold in 1/2 pkg. raspberry chips. Bake in a greased 9 x 13 pan for 30 minutes at 350 degrees. Brownies should be just done, not dry. Cool on rack.
For frosting, beat butter and sugar, adding milk as necessary, to make fluffy frosting (about 5 min.). Beat in vanilla and raspberry jam along with coloring if desired. Frost brownies & refrigerate 30 minutes.
Chocolate layer: Melt remaining chips with 1/4 c. butter to spreading consistency. Pour over frosting layer and spread to cover. Refrigerate to set.