diff --git a/Golden_Repo/b/Blosc/Blosc-1.21.1-GCCcore-11.3.0.eb b/Golden_Repo/b/Blosc/Blosc-1.21.1-GCCcore-11.3.0.eb
new file mode 100644
index 0000000000000000000000000000000000000000..f053959b32c2b12b657ef0bffd6c5ab7386b01a4
--- /dev/null
+++ b/Golden_Repo/b/Blosc/Blosc-1.21.1-GCCcore-11.3.0.eb
@@ -0,0 +1,28 @@
+easyblock = 'CMakeMake'
+
+name = 'Blosc'
+version = '1.21.1'
+
+homepage = 'https://www.blosc.org/'
+
+description = "Blosc, an extremely fast, multi-threaded, meta-compressor library"
+
+toolchain = {'name': 'GCCcore', 'version': '11.3.0'}
+toolchainopts = {'pic': True, 'cstd': 'c++11'}
+
+source_urls = ['https://github.com/Blosc/c-blosc/archive/']
+sources = ['v%(version)s.tar.gz']
+checksums = ['f387149eab24efa01c308e4cba0f59f64ccae57292ec9c794002232f7903b55b']
+
+builddependencies = [
+    ('binutils', '2.38'),
+    ('CMake', '3.23.1'),
+]
+
+sanity_check_paths = {
+    'files': ['include/blosc-export.h', 'include/blosc.h', 'lib/libblosc.a',
+              'lib/libblosc.%s' % SHLIB_EXT],
+    'dirs': [],
+}
+
+moduleclass = 'lib'