Mini Roast Beef Sandwiches with Horseradish Mayo


Summertime (or late spring, to be exact) entertaining has finally kicked in!  The warm, sunny weather is a big factor, but for us it’s really because we FINALLY have a functioning grill.


Let me back up a bit.  Three years ago when we packed up our house in Boston to move to the UK, it involved quite a bit of sorting:  donations, air shipment, boat shipment, items for storage, items to sell at our garage sale (oh, I do miss that garage), etc..  Against my better judgement David sorted our monster, American-size, 6-burner gas grill into the “boat shipment” category – rather than the more appropriate “garage sale” category.

horsey sauce

It looked downright silly in our tiny, narrow, English terraced house garden.  But aesthetics weren’t the main problem.  The main problem was that the gas hook-up is different in the UK.  So David pulled a MacGyver, got all manly and rigged up his own gas hook-up with some random parts from the tool box.  I refused to touch the thing.  So he did all the grilling….that is until singeing his eyebrows.  Even then he couldn’t part with his big-old grill; it sat unused for the better part of last summer.

So last weekend we rented a car, dumped the old grill at “the tip” (a.k.a garbage dump), picked up a new grill, assembled said grill and now we are back in action.

And now to the point of the post.  If you’re planning to entertain this summer, including this holiday weekend, you’ll need a nibble to serve hungry guests when you’re hanging out in the warm, sunny weather and grilling.  And this is where these Mini Roast Beef Sandwiches come in.  They’re a perfect bite of roast beef with the crunch of the toasted bread, tang of the watercress and creamy zip from the horseradish mayo.  Those hungry guests will thank you!

Mini Roast Beef Sandwiches with Horseradish Mayo (makes about 30 appetizer-size sandwiches)

Note:  Use grated horseradish in a jar or buy a knob of fresh horseradish and grate it yourself.  Just don’t use horseradish cream or sauce as it already has cream in it and won’t give the same kick as straight-up horseradish.  I found it easiest to dollop the horseradish mayonnaise using small pastry bag, but you can also use a butter knife – dip it in the mayo, get a little dollop on the end, and plop it on the roast beef.

1 baguette

½ cup (125 grams) mayonnaise

1 tablespoon horseradish (freshly grated or grated in a jar)

Small bunch watercress

1/3 pound (150 grams) thinly sliced roast beef (rare, preferably)

Preheat broiler.  Slice baguette into ½” thick (1.25 cm) rounds and place on a baking sheet.  Bake until lightly toasted, about 1-3 minutes.  Be sure to check often as the bread can burn quickly.

Combine the mayonnaise and horseradish in a small bowl.

To assemble the sandwiches, place a small amount of watercress on the baguette round.  Top with roast beef, a dollop of horseradish mayonnaise and a small sprig of watercress.


  • Nicola johnstone
    Posted May 22, 2015 9:58 am 0Likes

    You make me laugh! I just have this image of poor Dave running around the house, eyebrows ablazing! Thk god you sorted out that bbq!


    Sent from my iPad


    • katiebwalter
      Posted May 31, 2015 4:41 pm 0Likes

      Image is correct….just running around the backyard, not the house:) xx

Leave a reply

%d bloggers like this: