From the Route 18 North, East Brunswick, Old Bridge, Spotswood, South River
As you aproach the New Brunswick area just after the first light past Route
1, move to the right lane.
Route 18 splits here and the express lane to Piscataway goes to the left; a long detour.
As of this writing, there is no sign to tell you to stay to the right to go to Highland Park.
Half a mile after this bifurcation you'll see a sign for “HIGHLAND PARK” and “Route 27 North”.
Take this exit. It leaves Route 18 to the right.
This will put you on a bridge over the Raritan River. Get into left lane.
Make a left at the light at the end of the bridge. You will now be on River Rd.
Make a right onto Cleveland Ave. It’s the third turn on the right on River Rd..
Birnn Chocolates is at the end of the second block on the right at the junction of Cleveland and Madison Aves.
Look for a white one story building. The entrance is on Madison Ave.