Thanks so much to the poster that said use an oven.  I even tried a hair drier which didn't work.  I've been using this stuff since I was a kid and never knew how to apply.  I did make a couple modifications on the posters instructions and it worked well.  This is how I applied the mink oil:

1. I tucked the extra part of the laces into the top of the boot.

2. Rub the mink oil in by hand, use a good amount and rub it well into seams especially.

3.  I removed the top over rack and moved the bottom rack to the lowest spot.  put aluminum foil on the bottom rack.

4.  I heated the oven to 160 degrees F.  Once it was heated, I turned the oven OFF and put the boots in. I left the boots in about 18 minutes minutes with the oven off and the door SHUT.

5.  After my timer went off after about 18 minutes, I took the boots out and let them cool.  Once cool, the leather surface was completely dry and not oily at all.  And the boots hardly had any smell either.  All the mink oil was absorbed in the leather.  Even the aluminum foil wasn't oily, it was all in the boots.  And the leather was dry with no visible mink oil.  And I used a lot of mink oil, I treated five pairs of boots (including two kids pairs) using the entire the can so I was using a lot and rubbing it in.

Notice I never had the boots in the oven with the oven turned on.